Dual drug delivery device

A liquid delivery apparatus comprising:

• a deformable balloon having an interior volume and at least one deformable interior wall in the interior volume, the at least one deformable interior wall defining a plurality of reservoir chambers in the interior volume;
• and
• a plurality of liquid delivery pathways, each liquid delivery pathway comprising:
• a liquid reservoir corresponding to one of the plurality of reservoir chambers;
• a piezoelectrically actuated microvalve fluidly connected to the liquid reservoir;
• and,
• a catheter delivery tube fluidly connected to the piezoelectrically actuated microvalve.

A liquid delivery apparatus comprising a liquid delivery pathway and a sensor selected from the group consisting of a flow meter fluidly connected to the liquid delivery pathway, an accelerometer, and combinations thereof;

• wherein the liquid delivery pathway comprises:
• a liquid reservoir comprising a deformable balloon having an interior volume and at least one deformable interior wall in the interior volume, the at least one deformable interior wall defining a plurality of reservoir chambers in the interior volume;
• a liquid metering unit fluidly connected to one of the reservoir chambers;
• and,
• a catheter delivery tube fluidly connected to the liquid metering unit.

A liquid delivery apparatus comprising:

• a liquid reservoir comprising a deformable balloon having an interior volume and at least one deformable interior wall in the interior volume, the at least one deformable interior wall defining a plurality of reservoir chambers in the interior volume;
• a plurality of liquid metering units, each of which is fluidly connected to one of the reservoir chambers;
• a means for measuring the volume of the liquid in the reservoir chamber;
• and,
• a plurality of catheter delivery tubes, each of which is fluidly connected to one of the liquid metering units.